Question: Hello, I recently experienced a data lost with Yanhua Mini ACDP BMW CAS3+. This CAS3+ is easy to fix. But I'm wondering what can I do if I had problem with CAS4+ or FEM/BDC module.
We are asking if there is a solution to fix the problem…
Solution
- If CAS4/CAS4+ coding data loss due to transmission interruption, go to recover data in Mini ACDP, the vehicle can back to normal.
Path: BMW >> CAS1~4 >> CAS4/CAS4+ >> OBD mode >> IMMO/Mileage >> Recover coding data
- If FEM/BDC transmission break, DO NOT exit and wait for 15 minutes. The ACDP back-end will run automatically.
- If FEM/BDC data loss, go to recover EEPROM & coding data in Mini ACDP with a smart phone. The vehicle will return to normal.
Path: BMW >>FEM/BDC>>IMMO/Mileage >>Mode 1: add key >> FEM/BDC initial programming process >> Method 2: manual single step operation >> Recover EEPROM data/ Recover coding data
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